Stapler



FIG. 1 is a front perspective view of a first embodiment of the stapler showing our new design;

FIG. 2 is a right side elevational view thereof, the left side view being the same;

FIG. 3 is a front elevational view thereof;

FIG. 4 is rear elevational view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a front perspective view of a second embodiment of the stapler showing our new design;

FIG. 8 is a right side elevational view thereof, the left side view being the same;

FIG. 9 is a front elevational view thereof;

FIG. 10 is rear elevational view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a top view thereof;

FIG. 13 is a front perspective view of a third embodiment of the stapler showing our new design;

FIG. 14 is a right side elevational view thereof, the left side view being the same;

FIG. 15 is a front elevational view thereof;

FIG. 16 is rear elevational view thereof;

FIG. 17 is a bottom view thereof; and,

FIG. 18 is a top view thereof.

The staple mechanism, anvil, and support structure on the bottom of the stapler, all shown in broken lines in the figures, are not a part of the claimed invention, but are considered necessary to show environment. 

The ornamental design for a stapler, as shown and described. 